JAMB - Chemistry (2009 - No. 35)
which of the following metals will show the highest metallic character?
Zinc
Copper
Barium
Calcium
Giải thích
The reactivity series of metals, also known as the activity series, refers to the arrangement of metals in the descending order of their reactivities.
Na > Ca > Mg > Al > Zn > Fe > Sn > Pb > Cu > Ag.
Considering metallic property which increases down the group, barium will be ranked calcium